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E
ES4710BD 10 Slots L2/L3/L4 Chassis Switch
Command:
switchport trunk allowed vlan {<
vlan-list>
|
all}
no
switchport trunk allowed vlan
Function:
Sets trunk port to allow VLAN traffic; the “
no
switchport trunk allowed vlan
”
command restores the default setting.
Parameters:
<
vlan-list>
is the list of VLANs allowed to pass through in the specified Trunk port;
keyword “
all”
allows all VLAN traffic on the Trunk port.
Command mode:
Interface Mode
Default:
Default is Trunk port allowing all VLAN traffic
Usage Guide:
The user can use this command to allow VLAN traffic to pass though the trunk port;
traffic of VLANs not included are prohibited.
Example:
Setting the Trunk port to allow traffic of VLAN1, 3, 5-20.
Switch(Config)#interface ethernet 1/5
Switch(Config-ethernet1/5)#switchport mode trunk
Switch(Config-ethernet1/5)#switchport trunk allowed vlan 1;3;5-20
Switch(Config-ethernet1/5)#exit
9.2.2.7 switchport trunk native vlan
Command: switchport trunk native vlan <
vlan-id>
no
switchport trunk native vlan
Function:
Sets the PVID for Trunk port; the “
no
switchport trunk native vlan
” command restores
the default setting.
Parameters:
<
vlan-id>
is the PVID for Trunk port.
Command mode:
Interface Mode
Default:
The default PVID of Trunk port is 1.
Usage Guide:
PVID concept is defined in IEEE 802.1Q. PVID of Trunk ports are used to tag
untagged frames. When a untagged frame enters a Trunk port, the port will tag the untagged frame
with the native PVID set with this command for VLAN forwarding.
Example:
Setting the native vlan for a Trunk port to 100.
Switch(Config)#interface ethernet 1/5
Switch(Config-ethernet1/5)#switchport mode trunk
Switch(Config-ethernet1/5)#switchport trunk native vlan 100
Switch(Config-ethernet1/5)#exit
9.2.2.8 vlan ingress disable
Command: vlan ingress disable
no vlan ingress disable
Function:
Disables the VLAN ingress rule for a port; the “
no vlan ingress disable
” command
enables the ingress rule.
